Kinetographic apparatus.



v H. B. BYRON. KINETOGRAPHIC APPARATUS.

APPLICATION FILED FEB. 24. I912.

PatentedSept. 21, 1915.

2 SHEETS-SHEE1 1.

H. B. BYRON.

KINETOGRAPHIC APPARATUS,'

APPLICATION mu) .FEB. 24. 1912.

Patented Sept. 21, 1915.

2 SHEETSSHEET 2.

UNITED srarns PATENT OFFICE.

HAGAR BOLTON BYRON, OF CHICAGO, ILLINQIS, ASSIG-NOR, BY MESNE ASSIGNMENTS, OF ONE-THIRD TO A. H. ADAMS, ADA E. PICKAED, AND J. L. JACKSON, OF CHICAGO,

ILLINOIS.

KINETOGH-APHIC APPARATUS.

Application filed February 24. 1912.

To all whom it may concern Be it known that l, HAGAR Box/row BYRON, a citizen of the United States, residing at Chicago, in the'county of Cool; and State of Illinois, have invented certain new and useful Improvements in Kinetographic Apparatus, of which the following is a specification, reference being had to the accompanying drawings. I

My invention relates to the reproduction of views l;inetographically, and has for its object to provide new and improved apparatus, by which the pictures pro ected on the screen will be stationary, or substantially so, and by which the intensity of the light by which the image is projected will be practically constant at all times.

According to the present practice wherea revolving shutter is employed, tire light 15 intermittent and consequently the illumination of the screen is reduced about fifty per cent. from what it would be if the illumination were constant, an objection which is avoided by my present invention.

My invention accomplishes the ob ect by neutralizing the movement of the'moving picture-film before the image is pro ected on the screen. In the apparatus shown and de scribed this is effected by com 'iensating,- for the movement of the film by interposing between the source of light and the screen a system of mirrors, one of which is arrai'iged to oscillate or rock so as to neutralize or arrest the movement of the image and reflect it to a fixed point on a stationary mirror which re flccts it to the screen, but my invention, generically considered, is not limited to the form shown, as other means may be employed.

In the drawings, Figure 1 is a side view, partly diagrammatic, illustrating my improved apparatus; Fig. 2 is a plan view of the first or primary mirrors used in the form of apparatus shownin Fig. 1; Fig. 3 is a sectional view on line 3-3 of ig. 2, some parts being broken away; Fig. 4: is an edge view of the apparatus shown in Fig. 2; Fig. 5 is a detail illustrating the bearing for the primary mirrors in elevation; and Fig. 6 is a plan view of the bearing and connecting parts, the cap being removed.

Referring to the drawings 30 indicates a reel which carries the film 31, and 32 indicates a rewinding reel.

33 indicates-a rotary friction drum operated by a crank 34 for moving the film. said Specification of Letters Patent.

with a Patented Sept. 21, 1915, Serial No. 679,622.

drum having a pulley 35 connected bya belt pulley 37 on the rewinding reel 32. 38-39-l0-1t1 indicate guide-pulleys for the film.

l2 indicates the source of light, -;i3-t4 condensing lenses interposed between the source of light and the film 31, the focusing lens, and 4.6 the screen.

47 indicates a stationar Y mirror, which reflects the image upon the focusing lens 45..

48 indicates a rotary rocking mirror,-; which is mounted at the inclined shaft 49 having a worm 50 which,

meshes with a worm-wheel 51 forming a so that the rotation of the drum causes the shaft i9 and mirror,

part of the drum 33,

as to rotate. 1

The construction of the mirror 48 and the operating mechanism therefor is best shown. in Figs. 2, 3 and at. As therein shown, said mirror is composed of two semi-circular mirrors fi 48", which, together, form the circular mirror 48. The mirror or mirror members 4848 are mounted upon the shaft 49 so that they not only rotate with said shaft but also rock about 'a transverse axis so as to change their angular relation to each other. In order to provide for this movement, the shaft 49 is provided at its upper end with a spherical head 52 having within it a ball 53, as best shown in Fig. 3. The head 52 is provided with slots 54-55 at opposite sides thereof and segmental chambers 56 provided between the head 52 and the ball 53. Preferably, the upperportion of the head 52 is made renmval'fle, ad shown in Fig. '5,

connected with the shaft 49 by arms 59(3( l which project from the rear faces of the mirror sections and 5-i55 into the chambers 5(i57, where they are provided with heads (3l62 which'beai' upon theball and thereby form bearin blocks for the mirror sections and at the rms 59-60 from the head It will be apparent that by this construction the rotas upper end of an",

and is held in place by screw The mirror sections 49%8" are pass through the slots.

respecsame time prevent the withdrawal of the tively,t cylindrical foams 63-64: the operating marginsof which are inclined, as shown in Figs. 3 and 4, Said cams are rigidly connected to theirrespeotive mirror sections so 5 that they rotate with them.

' 6566 indicate a pair of rollers mounted on fixed supports 6768 secured'in position-- in any suitable way',as by connecting themto the standards 69 which support the other parts o the apparatus, as shown in Fig. 1 but said rollers maybe fixedly supported in any other suitableway. The rollers 65'66 are arranged to bear upon the upper margins of the cams 63-.6 4 so that when the cams are rotated by the rotation of the shaft v .49they will act to rock said cams and consequently' rock the mirror sections attached to them, the roller- 65 acting to rock the mir-' rors in one .directionfand the roller 66 to rock' them in the opposite direction as the cams rotate. For. example, when v the highest part of the cam 63 is under roller 65, the mirror; 48 with which said camis conneoted Will be tipped in one-direction,- whereas when the highest part of said cam is under roller 66, said mirror will be'tipped in the opposite direction. .This movement, of course,-takes place-gradually and continui ou'sly, as each camflis always in contact "with both rollers: When the. parts are in the position shown in Figs. 2 and 3, therollers 65 occupy a neutral position, as shown in dotted lines in said figures, so that the mirror sections 428 18 .are

then paralleL- When the. shaft 49 -ro- 'tates to carry the cams 63 -64 from the position shown in said figures, however, the rollers 65 66 will actto thrust back the projecting edges of the cams and conse- 40 quently rock their respective mirror sections so as to cause them to assume an inclined or angular position with relation to each other, thefaces of the mirrorsgthen assuming a more or less acute angle to the axis of the i shaft 49. This anglevaries constantly as the shaft-rotates, from a position perpendicular to the axis of the shaft to an angle determined by the elevation-of the'cams.

- In the construction shown this angle is 'one of about thirty degrees, but the range of movenient of the mirrors may be altered to meet the necessities of any given situation.

The. operation oi the apparatus i s as fo llows: The mirror 48, composigdflof the mirror sectionsdescribed, rotates continuously as the fihnftravcls, so'that the beam of light projected upon said mirror, which the ,pri nary mirror, when reflected on the sec.- ond ary mirror is diverted sufiiciently to 50 compensate for: the movement of the picture, so that the images are received by the sec ondary mirror at a fixed point notwithstanding the movement of the picture, and are consequently projected as a stationary Image onthc screen. causing the sec with, and means coacting with said cams for rocking said rocking members as the shaft tions of the primary mirror to rock or oscillate coincidentally. with their rotary move ment, such mirror presents to the light a constantly changing series of angles which act to'neutralize the movement of the picture and thus reflect a stationary image upon the secondary mirror. By the use of the two mirror sections moving in the manner described, as soon as one of said sections passes out of action, theother section takes up the next image, and thus the two act consecutively, upon adjacent images, and the action is thereby made constant, or without any appreciable interruption.

That which I claim as my invention, and so desire to secure by Letters Patent, is,

l. A kinetographic apparatus, comprising means for moving a picture film, means for directing light throughsuch film, a rotating mirror comprising a plurality of rocking members, a shaft having a spherical bearing member, means connected with said rocking members and bearing against said bearing member, and means for rocking said rocking members as said shaft rotates.

2. A kinetographic apparatus, comprising means for moving a picture film, means for directing light through such film, a rotating 1 mirror comprising a plurality of, rocking members, ashafthaving a'spherical 'bearing 96 member, means connected with said'rocking members and bearing against said bearing member, and cam mechanismfor rocking said rocking members as said shaftrotates. 3. A kinctographic apparatus, comprising means for moving a picture film, means .for. directing light through such film, arotating mirror. comprising a plurality 0f rocking members, a shaft having a spherical bearing member, meansconnccting with said rocking members and bearing, against said bearing member, cylindrical cams connected with said rocking members and rotating ther'e rotates.

4:. A kinetographic apparatus, comprising means for moving a picture film, means for directing light througl such film, a rotating mirror comprising a plurality of rocking members, a shaft having a slotted spherical head and a ball within said head, means connected with said rocking members and bearing against said ball, and means for rocking said rocking members as said shaft rotates. A lKlIlGhOgli'itPlllC apparatus, comprising means for moving a picture film,-mcans 1 or directing light through such film, a rotating mirror comprising a phirality of rookin Y membcrs, a shaft having a slotted. spherica head and a ball Within said head, means connected with said rocking members and bearing against said ball, cylindrical cams connected with said rocking members and rotating therewith, and means coactinr' with said cylindrical cams for rocking said rocking members.

6. 1X kinetographic apparatus,c0mprising means for moving. a picture film, means for directing light through such film, a rotating mirror comprising a plurality of rocking members, cylindrical cams connected with said rocking members and rotating therewith, and means coacting with said cams for rocking said rocking members as the mirror rotates.

7. A kinetographic apparatus, comprising means for moving a picture film, means for directing liglit through such film, a rotating mirror comprising a. plurality of 'rocking members, a shaft, means connect1ng sa1d nected with said rocking members and rotating therewith, and means coacting with said cams for rocking said rocking members as the: shaft rotates.

' HAGAR BOLTON BYRON. Witnesses W'. H; DEBUsK, W. FURNNER. 

